From: afaerber@suse•de (Andreas Färber)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v6 00/10] ARM: dts: exynos: Prepare Spring
Date: Sat, 02 Aug 2014 18:05:15 +0200 [thread overview]
Message-ID: <53DD0C3B.1000506@suse.de> (raw)
In-Reply-To: <53DCE40F.10809@gmail.com>
Am 02.08.2014 15:13, schrieb Tomasz Figa:
> On 02.08.2014 12:25, Andreas F?rber wrote:
>> One thing I've wondered is whether we should put status = "disabled" on
>> the dp node with some comment, since it's known not to work as is (but
>> better having the data here than leaving it out, I believe).
>
> Does the DP node itself need more data to work or just some external
> things are missing? If the former then probably status = "disabled"
> should be set, otherwise "okay" is fine if provided data are enough to
> probe the Exynos DP driver.
Support for ps8622 eDP/LVDS bridge has not yet landed in the drm tree.
The latest patch series V6 adds a "bridge" property to /dp-controller.
It further requires a simple-panel node and a node for the ps8622:
http://www.spinics.net/lists/linux-samsung-soc/msg35089.html
>> Of course if either of you has input on the discussions on the drm
>> bridge/panel series V6 [1] for how to enable non-simplefb display and
>> iommus, that would be valuable.
>
> Support for Exynos IOMMU is being worked on right now and patches adding
> DT support from Marek Szyprowski should show up on the lists in very
> near future.
Okay, good to hear.
> However I think you don't strictly need IOMMU to get
> non-simplefb display, as CMA can be used to allocate contiguous memory.
I do have CMA enabled, but it wasn't working without iommu patches
either. Machine booted, and display had backlight but stayed black.
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=64
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
CONFIG_CMA_AREAS=7
Ajay has reported the same patches working on his Skate.
Regards,
Andreas
>> [1] http://www.spinics.net/lists/linux-samsung-soc/msg35274.html
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next prev parent reply other threads:[~2014-08-02 16:05 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-02 0:52 [PATCH v6 00/10] ARM: dts: exynos: Prepare Spring Andreas Färber
2014-08-02 0:52 ` [PATCH v6 01/10] ARM: dts: Fix MMC pinctrl for exynos5250-snow Andreas Färber
2014-08-02 0:52 ` [PATCH v6 02/10] ARM: dts: Fold exynos5250-cros-common into exynos5250-snow Andreas Färber
2014-08-02 0:52 ` [PATCH v6 03/10] ARM: dts: Prepare node labels for exynos5250 Andreas Färber
2014-08-02 4:48 ` Doug Anderson
2014-08-02 12:19 ` Tomasz Figa
2014-08-02 13:00 ` Andreas Färber
2014-08-20 13:06 ` Andreas Färber
2014-08-20 13:02 ` [PATCH v7] " Andreas Färber
2014-08-22 10:49 ` Kukjin Kim
2014-08-22 11:37 ` Andreas Färber
2014-08-22 16:14 ` Doug Anderson
2014-08-02 0:52 ` [PATCH v6 04/10] ARM: dts: Clean up exynos5250-snow Andreas Färber
2014-08-02 4:54 ` Doug Anderson
2014-08-02 12:21 ` Tomasz Figa
2014-08-02 12:56 ` Tomasz Figa
2014-08-02 13:08 ` Andreas Färber
2014-08-02 13:09 ` Tomasz Figa
2014-08-02 0:52 ` [PATCH v6 05/10] ARM: dts: Fill in bootargs for exynos5250-snow Andreas Färber
2014-08-02 2:17 ` Javier Martinez Canillas
2014-08-02 0:52 ` [PATCH v6 06/10] ARM: dts: Clean up exynos5250-smdk5250 Andreas Färber
2014-08-02 12:57 ` Tomasz Figa
2014-08-02 0:52 ` [PATCH v6 07/10] ARM: dts: Clean up exynos5250-arndale Andreas Färber
2014-08-02 13:02 ` Tomasz Figa
2014-08-02 13:10 ` Andreas Färber
2014-08-02 0:52 ` [PATCH v6 08/10] ARM: dts: Fix apparent GPIO typo in exynos5250-arndale Andreas Färber
2014-08-02 0:52 ` [PATCH v6 09/10] ARM: dts: Simplify USB3503 on exynos5250-arndale Andreas Färber
2014-08-02 0:52 ` [PATCH v6 10/10] ARM: dts: Add exynos5250-spring device tree Andreas Färber
2014-08-02 13:18 ` Tomasz Figa
2014-08-04 15:22 ` Doug Anderson
2014-08-04 17:31 ` Javier Martinez Canillas
2014-08-20 12:50 ` Andreas Färber
2014-08-02 2:34 ` [PATCH v6 00/10] ARM: dts: exynos: Prepare Spring Javier Martinez Canillas
2014-08-02 4:57 ` Doug Anderson
2014-08-02 10:25 ` Andreas Färber
2014-08-02 13:13 ` Tomasz Figa
2014-08-02 16:05 ` Andreas Färber [this message]
2014-08-04 15:42 ` Doug Anderson
2014-08-04 17:43 ` Javier Martinez Canillas
2014-08-07 8:40 ` Javier Martinez Canillas
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